Word parts change

sight + seeing

Pronunciation change

Verb change

Plain form
sightsee

Third-person singular
sightsees

Past tense
sightseeing

Past participle
sightseen

Present participle
sightsaw

  1. The past tense of sightsee.

Noun change

Singular
sightseeing

Plural
none

  1. Sightseeing is the activity of going out looking at places of interest.